具有自适应功能的多档位恒流 LED 电源设计

摘要

随着 LED 灯具应用的普遍化，同灯具配套的 LED 驱动电源规格越来越多，市场上出现了很多档位可以调节的LED 驱动电源。文章以常见的小功率隔离反激 LED 开关电源为平台，研究了一种可调节档位的恒流 LED 电源方式，并实现调节电流之后，能自适应电源最大功率的设计。%With the universalization of LED lighting applications,and the specification of luminaires LED power supply are more and more,and many stalls can be used to adjust the LED drive power are appeared in the market.This article takes usual low power isolated flyback LED switching power supply as a platform,researched on a adjustable constant cur-rent LED power supply and after adjusting current,adaptive design of the power supply maximum power.